749R/742

Tapered roller bearings - Single-row - Inch series

Specifications
(Boundary dimensions ...etc)

d
85.026 mm
D
150.089 mm
T
44.450 mm
B
46.672 mm
C
36.512 mm
r(min.)
3.6 mm
r1(min.)
3.2 mm
Basic load ratings : Cr
330 kN
Basic load ratings : C0r
368 kN
Fatigue load limit : Cu
50.1 kN
Limiting speeds(Grease lub.)
2500 min-1
Limiting speeds(Oil lub.)
3400 min-1
Load center spread : a
32.4 mm
Constant :e
0.33
Axial load factors : Y1
1.84
Axial load factors : Y0
1.01

Mounting dimensions

da
101.0 mm
db
95.0 mm
Da
134.0 mm
Db
142.0 mm
ra(max.)
3.6 mm
rb(max.)
3.2 mm

Refer.

(Refer.)Mass
3.18 kg

Technical calculation for this product.

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